Paper-holder.



H. A. RICE & C. G. PATTERSON.

PAPER HOLDER. APPLICATION FILED MAY 31,1913.

Patented June 30, 1914.

fizrezzior UNTTED @ATS RANT OFFTQEQ HAROLD ALBERT RICE AND CHARLES GEORGE PATTERSON, OF TORONTO, ONTARIO, CANADA, ASSIGNORS TO THE NATIONAL ADVERTOGRAPH COMPANY LIMITED, OF TORONTO, CANADA, A CORPORATION OF ONTARIO, CANADA.

PAPER-HOLDER.

Specification of Letters Patent.

Patented J 11118 30, 1914.

Application filed. May 31, 1913. Serial No. 771,094.

To all whom it may concern Be it known that we, HAROLD ALBERT Rron and CHARLES Gnoncn PATTERSON, both of the city of Toronto, in the county of York and Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Paper-Holders; and we hereby declare that the following is a full, clear, and exact description of the same. Our invention relates to a paper holder for revolubly holding a paper roll, and the objects of our invention are to provide this holder with tensioning means which will continually maintain a uniform pressure on the paper roll from its maximum to its minimum diameter, and to provide it with a paper-severing knife which can be selectively moved into or out of a severing position with relation to the paper.

Figure 1, is a perspective view of the paper holder, showing the tensioning and severing means; and, Fig. 2, is a perspec tive View of the severing knife.

Like characters of reference refer to like parts throughout the specification and drawm s.

The arbors 1 of the paper roll 2 are revolubly mounted in the standards 3 so that the paper roll 2 will freely revolve when a desired length is being drawn therefrom. Engaging the paper 2 as it passes from the paper roll 2 is a tension roll 41, the arbors 5 of which are journaled in arms 6 pivoted at 6 to the standards 3 above the paper roll 2, the arms 6 projecting sufliciently beyond the front of the standards 3 to enable the tension roll 4 to continually engage the paper as the paper roll 2 gradually decreases from its maximum to its minimum diameter. Suspended -from the tension roll 1 is a bail 7, between which and the tension roll 4: the paper 2 passes from the paper roll, to the knife 8. The knife 8 is provided with end plates 8 mounted on the arbors 5 of the tension roll t so that the knife can be turned into a working position, as shown in full lines in Fig. 1, to sever the paper, or turned out of its working position, as shown in dotted lines in the same figure. The cutting edge ofthe knife 8 engages the paper after it passes between the tension roll 4 and hail 7, so that when the desired length of paper has been drawn from the paper roll 2, it can be severed along the edge of the knife.

Forming part of the knife 8 is a counterbalance 8 which serves as a handle for turning the knife into and out of operative relation with the paper, and also serves to hold the knife in either of these positions.

When the desired length of paper is withdrawn from the paper roll and is severed along the edge of the knife 8, the knife is turned from the position shown in full lines m Fig. 1 to that shown in dotted lines in the same figure, and when so turned, the paper extending beyond the bail 7 can be easily gripped by the user to draw off the next desired length, the knife 8 then being turned back to the position shown in full lines in Fig. 1, to sever it.

The speed at which the paper is drawn from the roll would cause the continued revolution of the paper roll if means were not provided to check its momentum, and in order to do this, we have provided the arms 6 with a tensioning device consisting of T-shaped levers comprising lever arms 9 pivoted at 9 to the standards 3 and having cross heads 10 bearing against the top of the arms 6. The pivots 9 are vertically below the pivots 6 so that the lever arms 9 will rock from one side to the other of said pivots 6. Oscillatingly mounted on the pivots 9 are rocker arms 11 having at their upper ends grooves 12 to receive the tongues 13 forming part of the arms 6. Connected to the rocker arms 11 and to the lever arms 9 are springs 14. When the arms 6 are in their lowered position, as shown in full lines in Fig. 1, the lever arms 9 are thrown to the front of the pivots 6 and in this position, the cross heads 10 bear upon the arms 6 between the pivots 6 and the tension roll 1, forcing the arms6 downward and pressing the tension roll against the paper and paper roll, thus causing the tension roll to apply a braking pressure to the paper roll to prevent the paper inadvertently unwinding therefrom. When the arms 6 are in their lowered position, the lower ends of the rocker arms 11 and the springs 14 are to the front of the pivots 9 with the springs 1d drawing the cross heads 10 against the arms 6. As the diameter of the paper roll 2 decreases, the tension roll 4: moves in toward the center of the paper roll and the cross heads follow the arms 6 under the influence of the springs 14:, there by maintaining a tension upon the arms 6. As the arms 6 move toward the center of the paper roll 2, the cross heads 10 approach, which have a sliding engagement with the arms 6, more closely to the tension roll 4 and thus increase their leverage on the arms 6. As the tension roll 4 approaches the center of the paper roll 2, the pins 15, to which the outer ends of the springs 14 are con nected, approach the pins 15 to which the inner ends are connected. The springs 14 during such approach gradually contract and diminish their tension in substantially the same ratio as the leverage of the cross heads on the arms 6, thus enabling the ten sion roll to maintain the same pressure 011 the paper roll from its maximum to its minimum diameter. When the arms 6 are raised into the position shown in dotted lines in Fig. 1, they throw the lever arms 9 to the rear of the pivots 6 and in this position, the cross heads 10 engage the arms 6 in the rear of the pivots 6*. As the arms 6 rise to the position shown in dotted lines in Fig. 1, the tongues 13 engaging in the grooves 12, rock the arms 11 so that the lower ends of said arms 11 and the springs 14 will be in rear of the pivots 9 to maintain a downward pull on the cross heads 10 and enable them to apply the necessary ""pressure to the rear ends of the arms 6 to hold the arms 6 in their elevated position, the upward movement of the arms 6 being limited by stops 16 connected to the standards 3.

By means of this construction, we are able to maintain a uniform tension on the paper from its maximum to its minimum diameter.

Having thus fully described the nature of our invention, what we claim as new and desire to secure by Letters Patent, is

1. A paper holder comprising a pair of standards to revolubly hold a roll of paper, two arms pivotally connected to said standards, a tension roll revolubly mounted in said arms, and means for automatically pressing the tension roll into engagement with the paper roll whereby it will maintain a continuous contact therewith as the diameter of the paper roll decreases, said means comprising levers pivoted to the standards and engaging the pivoted arms, rocking arms pivotally connected to the standards and movable to opposite sides of the pivots of the levers, and springs connected to the levers and to the rocking arms.

'2. A paper holder comprising a pair of standards to revolubly hold a. roll of paper, two arms pivotally connected to said standards, a tension roll revolubly mounted in said arms, and means for automatically pressing the tension roll into engagement with the paper roll whereby it will maintain a continuous contact therewith as the diameter of the paper roll decreases, said means comprising levers pivoted to the standards and engaging the pivoted arms, springs tensioning said levers and means for varying the tension of said springs as the diameter of the paper roll decreases.

3. A paper holder comprising a pair of standards to revolubly hold a roll of paper, two arms pivotally connected to said standards, a tension roll revolubly mounted in said arms, and means for automatically pressing the tension roll into engagement with the paper roll whereby it will maintain a continuous contact therewith as the diameter of the paper roll decreases, said means comprising levers pivoted to the standards and engaging the pivoted arms, rocking arms pivotally connected to the standards and movable to opposite sides of the pivots of the levers, springs connected to the levers and to the rocking arms, and means forming part of said pivoted arms to change the relative position of said rocking arms and springs to said levers whereby the levers will be tensioned when engaging said pivoted arms on opposite sides of the pivots thereof.

4. A paper holder comprising a pair of standards to revolubly hold a roll of paper, two arms pivotally connected to said standards, a tension roll revolubly mounted in said arms, levers engaging said arms and increasing their pressure thereon as the diameter of the paper roll decreases, and springs so connected to said levers as to decrease their tension thereon as the pressure of said levers on said arms increases.

5. In a paper holder, a supporting frame, a paper roll journaled the-rein, two arms piv otally connected to the supporting frame, a knife carried by said arms to engage the paper from the paper roll, and means for maintaining a uniform tension on said arms as the diameter of the paper roll decreases, said means comprising levers pivoted to the supporting frame having cross heads engaging the knife-carrying arms, rocking arms pivotally connected to the supporting frame movable to opposite sides of the pivots of the levers, and springs connected to the levers and rocking arms.

6. In a paper holder, a supporting frame, a paper roll journaled therein, two arms pivotally connected to the supporting frame, a knife carried by said arms to engage the paper from the paper roll, and means for maintaining a uniform tension on said arms as the diameter of the paper roll decreases, said means comprising levers pivoted to the supporting frame having cross heads engaging the knife-carrying arms, rocking arms pivotally connected to the supporting frame movable to opposite sides of the pivots of the levers, springs connected to the levers and rocking arms, means forming part of the knife-carrying arms tothrow the rocking arms to opposite sides of their pivots to cause the cross heads of the levers to engage the knife carrying arms on opposite sides of the pivots therefor.

7. A paper holder comprising means to revolubly hold a roll of paper, two arms pivotally connected therewith, a tension roll revolubly mounted in said arms, pivoted tensioning means engaging said arms and having a sliding relation therewith whereby said tensioning means will automatically follow the movement of said arms and thus cause them to exert a uniform pressure on the paper roll from its maximum to its minimum diameter.

8. A paper holder comprising means to revolubly hold a roll of paper, two arms pivotally connected therewith, a tension roll revolubly mounted in said arms, pivoted tensioning means engaging said arms and having a sliding relation therewith whereby said tensioning means will automatically follow the movement of said arms and thus cause them to exert a uniform pressure on the paper roll from its maximum to its minimum diameter, said tensioning means consisting of pivoted levers and springs.

Toronto, May 29th, 1913.

HAROLD ALBERT RICE. CHARLES GEORGE PATTERSON.

Signed in the presence of EDWARD BERNSTEIN, HERBERT B. SOMMERVILLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G." 

